当相机从起始视点开始移动时，健康条纹理的移动速度比播放器快

Question

当玩家离开敌人一段距离时，他们的行为被设定为到达，并且他们跟踪玩家，同时导致健康条移动到屏幕外：这是当相机和敌人开始移动时，健康条离开屏幕

public void drawHealthBar(SpriteBatch batch){
    batch.begin();
    batch.draw(wHB,
            (this.getX() * GameConfig.PPM) + 20, (this.getY() * GameConfig.PPM) + 35 ,
            (Gdx.graphics.getWidth() / 15) * wolfHealth, 8);
    batch.draw(gHB,
            (this.getX() * GameConfig.PPM) + 20, (this.getY() * GameConfig.PPM) + 35 ,
            (Gdx.graphics.getWidth() / 15) * 1, 8);
    batch.end();
}

whb和ghb是健康条纹理区域，有人知道为什么会这样吗？

下面是我的Play Screen类中的渲染函数，每个狼兽敌人的生命条正在被绘制：

public void render(float delta) {
    update(delta);
    Gdx.gl.glClearColor(1,0,0,1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
    // render map
    renderer.render();

    // render map bodies
    //box2DDebugRenderer.render(world, gameCam.combined);

    game.getBatch().setProjectionMatrix(gameCam.combined);
    game.getBatch().begin();
    player.draw(game.getBatch());
    for(WolfBeast wolfBeast: wolfEnemies){
        wolfBeast.draw(game.getBatch());
    }
    for(WaterBlast waterBlast: waterBlasts) {
        waterBlast.draw(game.getBatch());
    }
    game.getBatch().end();

    hud.stage.draw();

    for(WolfBeast wolfBeast: wolfEnemies){

        if(wolfBeast.wolfHealth > .6)
            game.getBatch().setColor(Color.GREEN);
        else if(wolfBeast.wolfHealth > .2)
            game.getBatch().setColor(Color.ORANGE);
        else
            game.getBatch().setColor(Color.RED);

        wolfBeast.drawHealthBar(game.getBatch());
        game.getBatch().setColor(Color.WHITE);
    }

    if(Gdx.app.getType() == Application.ApplicationType.Android) {
        moveButtons.drawButtons();
    }


}

public void update(float dt){
    stateTimer += dt;
    int playerXpos = (int) player.pBody.getPosition().x;
    int wolfBodyXpos = (int) this.eBody.getPosition().x;
    //System.out.println("playerXpos: " + playerXpos + " " + "wolfXpos: " + wolfBodyXpos);
    if (abs(playerXpos - wolfBodyXpos) >= 3.5f) {
        Arrive<Vector2> arriveSB = new Arrive<Vector2>(entity, target)
                .setTimeToTarget(.01f)
                .setArrivalTolerance(2.5f)
                .setDecelerationRadius(100);
        entity.setBehavior(arriveSB);
    }
    else {
        entity.setBehavior(null);
    }

    setPosition(eBody.getPosition().x - getWidth() / 2, eBody.getPosition().y - getHeight() / 2);
    setRegion(getFrame(dt));
    entity.update(dt);
}

Answer 1

问题是我的投影矩阵。我使用了不同的sprite投影和不同的body投影，这就是为什么它们以不同的速度移动。这是最有效的：

batch.draw(getFrame(dt),
            pBody.getPosition().x,pBody.getPosition().y,
            1,1,
            1, 1,
            1,1 ,
            0
            );

这对我有用：

public void drawHealthBar(SpriteBatch batch){
    batch.draw(wHB,
            eBody.getPosition().x - .4f,
            eBody.getPosition().y + .2f,
            .7f * wolfHealth, .12f
                );
    batch.draw(gHB,
            eBody.getPosition().x - .4f,
            eBody.getPosition().y + .2f,
            .7f, .12f
                );
}

根据资产规模和规模调整值